==========跟单区(id, item, link, qty, price, contact) =====
GNC Women's Iron Complete 4瓶
http://www.gnc.com/GNC-Womens-Iron-Complete/product.jsp?productId=2133871&cp=3593182.3593185.45669996.12961320.2108488
GNC Women's Iron Complete 4瓶 单价 USD7.99
GNC Women's Iron Complete 4瓶 单价 USD7.99